Nice map (I'll rate 5/5 because of Gose's vote) but you could just walk straight down the middle, which, for the lazy players, would be their road of choice. Online, the shooting would occurr a lot in the middle, not such a bad thing, but it means the rest of the map dosn't get seen much :P.

EDIT: Scrap what I just said, just played, and realized to my fail that there were obstacles in the middle - awesome map, I like the breakables